[En-Nut-Discussion] Boot Loader

[Ben Hoyt]

Hi Dave,

I've used the AT45DB041B (4 Mbit) and the AT45DB161D (16 Mbit) parts. They
talk almost exactly the same way, though the page sizes are 256 bytes and
512 bytes, respectively. It may be slightly simpler to have your DataFlash
page size match the SAM7 flash page size.

The challange is to get the bootloader to be small enough yet still include
> some basic ethernet functions, I think one16K flash page may not be
> enough.


I reckon you could do a simple ethernet/TFTP bootloader in 16 KB, possibly
even remotely with a cellular modem. Though I've never tried, as I kinda
feel it's the wrong way of going about it.

Can you send me your bootloader project please.


Unfortunately I can't really. The old "Commercially Sensitive Information"
thing. :-) I can answer any general questions you have, though.

Cheers,
Ben.

-- 
Ben Hoyt
Mobile: +64 21 331 841
http://www.benhoyt.com/